"The Yankees signed former Mariners closer David Aardsma today, in hopes that the hard-throwing right hander can bounce back from Tommy John surgery in time to join the bullpen as soon as July.

But most likely, general manager Brian Cashman said Aardsma will contribute in 2013, when he's more than a year removed from surgery. Aardsma signed a one-year deal for $500,000 with a club option for next year, though incentives tied to how much he can pitch this year."